How long should I cook 1 haddock fillet in an 1100 watt microwave?

To cook a 1 haddock fillet in an 1100 watt microwave, place it in a microwave-safe dish and cover it loosely. Microwave on high for about 3 to 4 minutes, checking for doneness; the fish should be opaque and flake easily with a fork. If it’s not fully cooked, continue heating in 30-second increments until done. Always let it rest for a minute before serving.